Theorem 3ad2antr1

Description: Deduction adding conjuncts to antecedent. (Contributed by NM, 25-Dec-2007)

	Ref	Expression
Hypothesis	3ad2antl.1	⊢ ( ( 𝜑 ∧ 𝜒 ) → 𝜃 )
Assertion	3ad2antr1	⊢ ( ( 𝜑 ∧ ( 𝜒 ∧ 𝜓 ∧ 𝜏 ) ) → 𝜃 )

Proof

Step	Hyp	Ref	Expression
1		3ad2antl.1	⊢ ( ( 𝜑 ∧ 𝜒 ) → 𝜃 )
2	1	adantrr	⊢ ( ( 𝜑 ∧ ( 𝜒 ∧ 𝜓 ) ) → 𝜃 )
3	2	3adantr3	⊢ ( ( 𝜑 ∧ ( 𝜒 ∧ 𝜓 ∧ 𝜏 ) ) → 𝜃 )